Clinical study of stress shielding after mini-plate internal fixation for mandibular fractures.
- Author:
Shi-jun LIU
1
;
Li-jun WANG
;
Xiao-ming GU
;
Wei WU
;
Peng XU
;
Zu-xian CHEN
Author Information
- Publication Type:Journal Article
- MeSH: Bone Density; Bone Plates; Fracture Fixation, Internal; Humans; Mandibular Fractures; surgery
- From: Chinese Journal of Stomatology 2010;45(8):474-476
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo investigate the stress shielding after mini-plate internal fixation for mandibular fractures.
METHODSEighteen patients with mandibular fractures were selected.X-rays were taken before operation and 3, 4, 6 months after operation when the plates were removed. The bone density of the mini plate area was examined and compared among different time interval groups.
RESULTSThe bone density before operation (125.41 ± 2.47) and 3 months after operation (120.19 ± 3.52) was not significantly different, but became lower 4 and 6 months after operation than before operation.
CONCLUSIONSThere appeared stress shielding after internal fixation for 4 and 6 months in mandibular fracture, and the mini plate should be removed at those times.
